The good: 
- It provides your forum with a dedicated FAQ page, directly from the nav bar. Sidebar where you can add categories, and of course questions within them.
The bad: 
- Very little customization options. You have the BB code editor, that's about it. 
- Lacks proper formatting on the FAQ page (no collapsible spoilers f.ex), making the different questions in the same category, kind of flow together. 
Look to Wordpress FAQ addons for inspiration: 
https://wordpress.org/plugins/ultimate-faqs/